package com.itheima.reggie.web;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.ICategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpSession;
import java.time.LocalDateTime;
import java.util.List;

/**
 * @Author:wujing
 * @Date:2022/12/15 17:44
 */
@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {

    @Autowired
    private ICategoryService categoryService;

    //新增分类
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        log.info("category:{}", category);

        categoryService.save(category);
        return R.success("新增菜单分类成功！");
    }

    //分类和分页查询
    @GetMapping("/page")
    public R<Page> page(Integer page, Integer pageSize) {
        //分页构造器
        Page<Category> categoryPage = new Page<>(page, pageSize);

        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();

        //添加排序条件，根据sort进行排序
        queryWrapper.orderByAsc(Category::getSort);

        categoryService.page(categoryPage, queryWrapper);

        return R.success(categoryPage);
    }

    //删除功能
    @DeleteMapping
    public R<String> deleteById(long id) {
        log.info("删除分类，id为：{}", id);

//        categoryService.removeById(id);
        categoryService.remove(id);

        return R.success("分类信息删除成功！");
    }

    //修改分类
    @PutMapping
    public R<String> changeById(@RequestBody Category category) {
        log.info("修改分类信息：{}", category);

        categoryService.updateById(category);
        return R.success("修改分类信息成功！");
    }

    @GetMapping("/list")
    public R<List<Category>> list(Category category) {
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();

        //添加条件
        queryWrapper.eq(category.getType() != null,
                Category::getType, category.getType());

        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);

        List<Category> list = categoryService.list(queryWrapper);

        return R.success(list);
    }

}


























